Penny, David Harry. <br/><br/>
Case studies of subsistence and transition;  example: North Sumatra, Indonesia 
[by] D. H. Penny. 
 - [Medan?  1964?] 
 - 13 l.  28 cm. 
<br/><br/> Caption title. 
<br/><br/>Bibliography: leaf 12. 
<br/><br/><label>LCCN: </label>sa 68011860  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Agriculture--Economic aspects--Indonesia--Sumatera Utara.
<br/><br/><label>LC Class. No.: </label>HD2085.S75  / P45